LCM Alert Validation

Confidence

Failure Category

No Fault Found

Subcategory

No Fault Found

Sensor Verdict: The LCM system generated a Defect Detected alert on the GREEN (Right Turn) circuit for trailer V505774 at site PCW1. Based on the available evidence, this alert is classified as Inconclusive with low confidence (30%). The vendor's notes do not document any specific finding related to the GREEN circuit, nor do they confirm that the circuit was inspected and verified as functional using the required Phillips Connect TechAssist (PCT) app. The absence of repair line items and specific diagnostic findings makes it impossible to determine whether the sensor correctly identified a real defect or generated a false positive.

Photo Evidence: Three photos were submitted under the LIGHTS defect category. Photo 1 shows a green-illuminated LCM indicator light on what appears to be the nosebox or Smart 7 connector area, suggesting the system is powered and showing a green status signal — this alone does not confirm circuit health across all five channels. Photo 2 shows the exterior of the Amazon trailer (V505774 / AZNG) at night from a low angle, capturing the trailer's side and roofline but no individual lamp circuits illuminated. Photo 3 shows the rear nose area of the trailer with air lines (green, blue, red) connected, the nosebox panel, and rear undercarriage components. While the nosebox is partially visible in Photos 1 and 3, there is no clear, dedicated nosebox wiring photo as required by the troubleshooting procedure, and critically, there are no photos showing each of the five light circuits individually illuminated. No TechAssist app screenshot is present in any submitted photo.

Vendor Compliance: The vendor did not follow the LCM troubleshooting procedure as specified. The required steps include: (1) using the Phillips Connect TechAssist app to diagnose the system, (2) photographing each light circuit illuminated, (3) providing a clear nosebox wiring photo, and (4) submitting a TechAssist app completion screenshot showing a green 'Verified' status beside each of the five circuits. None of these requirements were met. The technician notes are generic, referencing only a 'routine inspection' and 'LCM Phillips Light Campaign completion' without any circuit-specific findings, diagnostic steps, or feedback from the required failure category list. This represents a significant compliance gap.

Repair Summary: No repairs were made. There are zero parts or labor line items on this work order. The vendor's completion note suggests the work was treated as a routine campaign check-off rather than a targeted diagnostic response to a specific circuit fault. The GREEN (Right Turn / roadside rear turn) circuit — the alerting circuit — was not specifically addressed, confirmed repaired, or documented as verified functional. It is unclear whether the technician even tested this circuit independently.

Key Concerns: Several flags are raised by this work order. First, the complete absence of line items combined with vague technician notes strongly suggests this was a paperwork completion rather than a genuine diagnostic response to an active LCM alert. Second, the TechAssist app was not used, which is the cornerstone of the required troubleshooting workflow — without PCT confirmation, there is no way to validate circuit health. Third, the photo documentation is insufficient: no per-light illumination photos and no compliant nosebox wiring image were provided. Fourth, the faulted GREEN circuit is never mentioned by name in the vendor notes, raising concern that the technician may not have been aware of or addressed the specific triggering fault. This work order should be flagged for vendor follow-up to obtain proper PCT verification and circuit-specific documentation before closure is accepted.